CAJ | 학술논문

通过对北江流域韶关段底积物进行取样，采用原子分光光度法检测了Cr、Pb、Cd、As 4种重金属的含量，并分析了4种重金属空间分布的特征。运用土壤污染累积指数法和内梅罗污染指数法对重金属环境污染的程度进行了评价。结果表明，重金属的污染程度在不同的地点存在明星差异，随着土壤深度的增加重金属含量明显降低，具有明显的表层富集的特点。研究区中，污染最严重的重金属是镉，其次是砷和铅，三者均达到严重污染等级，而铬也达到了轻度污染。因此，北江河流域韶关段河流已经受到了严重的重金属污染，环境治理刻不容缓。
통과대북강류역소관단저적물진행취양，채용원자분광광도법검측료Cr、Pb、Cd、As 4충중금속적함량，병분석료4충중금속공간분포적특정。운용토양오염루적지수법화내매라오염지수법대중금속배경오염적정도진행료평개。결과표명，중금속적오염정도재불동적지점존재명성차이，수착토양심도적증가중금속함량명현강저，구유명현적표층부집적특점。연구구중，오염최엄중적중금속시력，기차시신화연，삼자균체도엄중오염등급，이락야체도료경도오염。인차，북강하류역소관단하류이경수도료엄중적중금속오염，배경치리각불용완。
Through bottom sediments sampling in the Beijiang river basin of Shaoguan,and using atomic spectrophotometry to detect content of the Cr,Pb,Cd,As,and analyzes characteristics of spatial distribution of the four heavy metals. The accumulated soil pollution index method and Nemerow integrated contamina?tion index were applied to evaluated the degree of heavy metal pollution of the environment. Results show that the pollution degree of heavy metals in different locations is differences,heavy metal content decrease obviously with the increase of depth of soil,has the obvious characteristics of surface enrichment. In the study area,cadmium is the most polluted heavy metal,followed by arsenic and lead,which all serious pollu?tion grades,and chromium have reached the light pollution. Therefore,in the Beijiang river basin of shao?guan section has suffered serious pollution of heavy metals,so it is urgent to environmental governance.